38 Hcemafiatics. 
4. Thefe eight hundred and eighty cubic 
Inches multiplied by 2.6 jrj the Number of 
Grains in a cubic Inch of Blood gives 13557^ 
;=35.^i Pounds. 
5. The Area of the tranlverfe Sedion of 
the Aorta, juft before the coronary Arteries 
branch off from it, being 0.196 Iquarelnch, 
by which dividing 1.172 cubic Inch, the Ca- 
pacity of the Ventricle, the Quotient ^.5^78 
Inches is the Length of the Cylinder of Blood, 
which is formed in paffing thro* the Orifice of 
the Aorta, at each Syjlole of the Ventricle. 
6. And a Dog*s Pulfe being found to bear, 
or his left Ventricle to contrad ninety feven 
times in a Minute, then a Column of Blood 
fo many times 5.97 Inches long, will be 
3474^.4 Inches or 289J.43 Feet long: But 
the Syjloles of the Heart during which that 
Quantity is propelled, being eftimatcd to be 
done in one third of the Time between Pulfe 
and Pulfe, the Velocity of the Blood during 
each SyJloJe will be thrice as much, viz» 
858^.35 Feet, that is at the rate of i,6z 
Mile in an Hour, or 143.1 Feet in a Minute. 
7. And the Ventricle throwing out 1.172 
cubic Inch of Blood in each Syflole, that is 
4.54 Pounds in ninety feven Pulfes, the Num- 
ber 
